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Severe Thunderstorm Watch 190
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WW0190 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL0

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 190
   NWS STORM PREDICTION CENTER NORMAN OK
   215 PM EDT TUE MAY 27 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     DISTRICT OF COLUMBIA
     MARYLAND
     SOUTHERN NEW YORK
     CENTRAL AND EASTERN PENNSYLVANIA
     NORTHERN AND CENTRAL VIRGINIA
     EASTERN WEST VIRGINIA
     COASTAL WATERS

   * EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 215 PM UNTIL
     900 PM EDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES EAST
   NORTHEAST OF ITHACA NEW YORK TO 55 MILES EAST OF STAUNTON
   VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
   AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
   THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
   AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.

   &&

   DISCUSSION...TSTMS FORMING OVER THE HIGHER TERRAIN OF CNTRL/SW PA
   AND PARTS OF WV EXPECTED TO MOVE/DEVELOP ESE WITH MODERATE LARGELY
   UNIDIRECTIONAL WNWLY UPR FLOW. DIURNAL DEVELOPMENT APPEARS TO HAVE
   BEEN AIDED BY INFLOW OF FAIRLY RICH LOW-LVL MOISTURE FROM THE OH
   VLY...AND BY A WEAK DISTURBANCE NOW OVER NW PA /REF MCD 726/. WITH
   THE LIKELIHOOD FOR UPSCALE GROWTH INTO ONE OR MORE BANDS...AND GIVEN
   THE DEGREE OF BUOYANCY /MLCAPE TO 2000 J PER KG/...SETUP MAY YIELD
   SCTD INSTANCES OF SVR HAIL/LOCALLY DMGG WIND.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 30025.


   ...CORFIDI
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Page last modified: May 28, 2014
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